<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <span id="num">{{num}}</span>
        <button v-on:click="num++">赞！</button>
        <h2>{{name}}，非常帅！！！有{{num}}个人点赞。 </h2>
    </div>
    <script src="../node_modules/vue/dist/vue.js">
    </script>
    <script type="text/javascript">
        
        let vm = new Vue({
            el: "#app",
            data: { name: "张三", num: 100 },
            methods: { 
                show() { 
                    return this.name; 
                },
                add() { 
                    this.num++; 
                } 
            },
            beforeCreate() {
                console.log("=========beforeCreate=============");
                console.log("数据模型未加载：" + this.name, this.num);
                console.log("方法未加载：" + this.show());
                console.log("html 模板未加载： " + document.getElementById("num"));
            }, 
            created: function() {
                console.log("=========created=============");
                console.log("数据模型已加载：" + this.name, this.num);
                console.log("方法已加载：" + this.show());
                console.log("html 模板已加载： " + document.getElementById("num"));
                console.log("html 模板未渲染： " + document.getElementById("num").innerText);
            }, 
            beforeMount() {
                console.log("=========beforeMount=============");
                console.log("html 模板未渲染： " + document.getElementById("num").innerText);
            }, 
            mounted() {
                console.log("=========mounted=============");
                console.log("html 模板已渲染： " + document.getElementById("num").innerText);
            }, 
            beforeUpdate() {
                console.log("=========beforeUpdate=============");
                console.log("数据模型已更新：" + this.num);
                console.log("html 模板未更新： " + document.getElementById("num").innerText);
            }, 
            updated() {
                console.log("=========updated=============");
                console.log("数据模型已更新：" + this.num);
                console.log("html 模板已更新： " + document.getElementById("num").innerText);
            }
        })
    </script>
</body>
</html>